Internet Engineering Task Force (IETF) H. Gerstung
Request for Comments: 5907 Meinberg
Category: Standards Track C. Elliott
ISSN: 2070-1721
B. Haberman, Ed.
JHU APL
June 2010
Internet Engineering Task Force (IETF) H. Gerstung
Request for Comments: 5907 Meinberg
Category: Standards Track C. Elliott
ISSN: 2070-1721
B. Haberman, Ed.
JHU APL
June 2010
Definitions of Managed Objects for Network Time Protocol Version 4 (NTPv4)
网络时间协议版本4（NTPv4）的托管对象定义
Abstract
摘要
The Network Time Protocol (NTP) is used in networks of all types and sizes for time synchronization of servers, workstations, and other networked equipment. As time synchronization is more and more a mission-critical service, standardized means for monitoring and management of this subsystem of a networked host are required to allow operators of such a service to set up a monitoring system that is platform- and vendor-independent. This document provides a standardized collection of data objects for monitoring the NTP entity of such a network participant and it is part of the NTP version 4 standardization effort.
网络时间协议（NTP）用于所有类型和大小的网络，用于服务器、工作站和其他网络设备的时间同步。随着时间同步越来越成为一项任务关键型服务，需要对网络主机的该子系统进行监控和管理的标准化方法，以允许此类服务的运营商建立独立于平台和供应商的监控系统。本文件提供了用于监控此类网络参与者的NTP实体的标准化数据对象集合，是NTP版本4标准化工作的一部分。
5Status of This Memo
5本备忘录的状况
This is an Internet Standards Track document.
这是一份互联网标准跟踪文件。
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741.
本文件是互联网工程任务组（IETF）的产品。它代表了IETF社区的共识。它已经接受了公众审查，并已被互联网工程指导小组（IESG）批准出版。有关互联网标准的更多信息，请参见RFC 5741第2节。
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc5907.
有关本文件当前状态、任何勘误表以及如何提供反馈的信息，请访问http://www.rfc-editor.org/info/rfc5907.
Copyright Notice
版权公告
Copyright (c) 2010 IETF Trust and the persons identified as the document authors. All rights reserved.
版权所有（c）2010 IETF信托基金和确定为文件作者的人员。版权所有。
This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License.
本文件受BCP 78和IETF信托有关IETF文件的法律规定的约束(http://trustee.ietf.org/license-info)自本文件出版之日起生效。请仔细阅读这些文件，因为它们描述了您对本文件的权利和限制。从本文件中提取的代码组件必须包括信托法律条款第4.e节中所述的简化BSD许可证文本，并提供简化BSD许可证中所述的无担保。
Table of Contents
目录
1. Introduction ....................................................2
2. Conventions Used in This Document ...............................3
3. The Internet-Standard Management Framework ......................3
4. Technical Description ...........................................3
5. MIB Definition ..................................................4
6. IANA Considerations ............................................23
7. Security Considerations ........................................23
8. Acknowledgments ................................................24
9. References .....................................................24
9.1. Normative References ......................................24
9.2. Informative References ....................................2
1. Introduction ....................................................2
2. Conventions Used in This Document ...............................3
3. The Internet-Standard Management Framework ......................3
4. Technical Description ...........................................3
5. MIB Definition ..................................................4
6. IANA Considerations ............................................23
7. Security Considerations ........................................23
8. Acknowledgments ................................................24
9. References .....................................................24
9.1. Normative References ......................................24
9.2. Informative References ....................................2
The NTPv4 MIB module is designed to allow Simple Network Management Protocol (SNMP) to be used to monitor and manage local NTP [RFC5905] entities. It provides a collection of data objects that can be queried using the SNMP protocol and represent the current status of the NTP entity. This includes general information about the NTP entity itself (vendor, product, version) as well as connectivity to upstream NTP servers used as sources of reference time and to hardware reference clocks like radio clocks. The most important values are included in order to be able to detect failures before they can have an impact on the overall time synchronization status of the network. There are also a collection of notification objects to inform about state changes in the NTP entity. There are objects to control these notifications as well.
NTPv4 MIB模块的设计允许使用简单网络管理协议（SNMP）来监视和管理本地NTP[RFC5905]实体。它提供可使用SNMP协议查询的数据对象集合，并表示NTP实体的当前状态。这包括有关NTP实体本身（供应商、产品、版本）的一般信息，以及与用作参考时间源的上游NTP服务器和硬件参考时钟（如无线电时钟）的连接。包含最重要的值是为了能够在故障对网络的总体时间同步状态产生影响之前检测故障。还有一个通知对象集合，用于通知NTP实体中的状态更改。还有一些对象可以控制这些通知。
The capitalized key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119].
本文件中大写的关键词“必须”、“不得”、“必需”、“应”、“不应”、“应”、“不应”、“建议”、“可”和“可选”应按照[RFC2119]中的说明进行解释。
For a detailed overview of the documents that describe the current Internet-Standard Management Framework, please refer to section 7 of RFC 3410 [RFC3410].
有关描述当前互联网标准管理框架的文件的详细概述，请参阅RFC 3410[RFC3410]第7节。
Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. MIB objects are generally accessed through the Simple Network Management Protocol (SNMP). Objects in the MIB are defined using the mechanisms defined in the Structure of Management Information (SMI). This memo specifies a MIB module that is compliant to the SMIv2, which is described in STD 58, RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580 [RFC2580].
托管对象通过虚拟信息存储（称为管理信息库或MIB）进行访问。MIB对象通常通过简单网络管理协议（SNMP）进行访问。MIB中的对象是使用管理信息结构（SMI）中定义的机制定义的。本备忘录规定了符合SMIv2的MIB模块，如STD 58、RFC 2578[RFC2578]、STD 58、RFC 2579[RFC2579]和STD 58、RFC 2580[RFC2580]所述。
The NTPv4 MIB module is divided into sections for general server information, current NTP entity status, status information of all mobilized associations (e.g., unicast upstream time servers, multicast or broadcast, time references, and hardware clocks), NTP entity control objects, NTP objects used only for notifications, as well as SNMP notification definitions for core events.
NTPv4 MIB模块分为以下部分：一般服务器信息、当前NTP实体状态、所有移动关联的状态信息（例如，单播上游时间服务器、多播或广播、时间参考和硬件时钟）、NTP实体控制对象、仅用于通知的NTP对象、，以及核心事件的SNMP通知定义。
The general server information section contains static information and can be queried to identify which NTP implementation is running on a host. This includes the vendor and product name of the running NTP software as well as version information, hardware/os platform identity, and the time resolution of the underlying OS.
“常规服务器信息”部分包含静态信息，可以进行查询以确定主机上正在运行哪个NTP实现。这包括正在运行的NTP软件的供应商和产品名称，以及版本信息、硬件/操作系统平台标识和底层操作系统的时间分辨率。
Section 2 (current NTP status) includes data objects that represent the current operational status of the NTP entity.
第2节（当前NTP状态）包括表示NTP实体当前运行状态的数据对象。
The third section contains data objects that represent the set of time references ("associations") with which the NTP entity is currently working.
第三部分包含表示NTP实体当前使用的时间引用集（“关联”）的数据对象。
The fourth section contains objects that can be used to control the NTP entity. The currently defined objects control how often the heartbeat interval notification is sent out and which notifications are enabled.
第四部分包含可用于控制NTP实体的对象。当前定义的对象控制发送心跳间隔通知的频率以及启用哪些通知。
The fifth section contains objects that are only used as varbinds in notifications. There is currently only one object in this section -- a message that adds a cleartext event message to notifications.
第五部分包含仅在通知中用作varbind的对象。在这个部分中目前只有一个对象——一个向通知添加明文事件消息的消息。
Certain important events can occur while the NTP entity is running. The notification section defines SNMP notifications for a collection of the most important ones ("core events") and additionally provides a heartbeat notification as well as a test notification to allow management systems to test the reception of NTP-related notifications as well as enable heartbeat-based monitoring systems to assure that the NTP entity is still up and running.
NTP实体运行时可能会发生某些重要事件。通知部分为一组最重要的通知（“核心事件”）定义SNMP通知此外，还提供心跳通知和测试通知，以允许管理系统测试NTP相关通知的接收，并启用基于心跳的监控系统，以确保NTP实体仍处于运行状态。
Some values are included both in numeric and in human-readable (string) format. This has been done to simplify the representation of a status information. If the two representations of a certain value differ, the numeric representation takes precedence.
有些值包括数字格式和人类可读（字符串）格式。这样做是为了简化状态信息的表示。如果某个值的两种表示不同，则以数值表示为准。
-- *********************************************************************
--
-- The Network Time Protocol Version 4
-- Management Information Base (MIB)
--
-- Authors: Heiko Gerstung (heiko.gerstung@meinberg.de)
-- Chris Elliott (chelliot@pobox.com)
--
-- for the Internet Engineering Task Force (IETF)
-- NTP Working Group (ntpwg)
--
--
-- *********************************************************************
-- Rev 1.00
-- Published as RFC 5907
--
-- *********************************************************************
-- *********************************************************************
--
-- The Network Time Protocol Version 4
-- Management Information Base (MIB)
--
-- Authors: Heiko Gerstung (heiko.gerstung@meinberg.de)
-- Chris Elliott (chelliot@pobox.com)
--
-- for the Internet Engineering Task Force (IETF)
-- NTP Working Group (ntpwg)
--
--
-- *********************************************************************
-- Rev 1.00
-- Published as RFC 5907
--
-- *********************************************************************
NTPv4-MIB DEFINITIONS ::= BEGIN
NTPv4-MIB DEFINITIONS ::= BEGIN
IMPORTS MODULE-IDENTITY, OBJECT-TYPE , mib-2, Integer32, NOTIFICATION-TYPE, Unsigned32, Counter32, TimeTicks FROM SNMPv2-SMI -- RFC 2578 MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP FROM SNMPv2-CONF -- RFC 2580 DisplayString, TEXTUAL-CONVENTION FROM SNMPv2-TC -- RFC 2579
从SNMPv2 SMI中导入MODULE-IDENTITY、OBJECT-TYPE、mib-2、Integer32、NOTIFICATION-TYPE、Unsigned32、Counter32、TimeTicks--RFC 2578从SNMPv2 CONF中导入MODULE-COMPLIANCE、OBJECT-GROUP、NOTIFICATION-GROUP--RFC 2580 DisplayString，从SNMPv2 TC中导入text-CONVENTION--RFC 2579
InetAddressType, InetAddress FROM INET-ADDRESS-MIB -- RFC 4001 Utf8String FROM SYSAPPL-MIB; -- RFC 2287
InetAddressType，INET-ADDRESS-MIB中的InetAddress--SYSAPPL-MIB中的RFC 4001 Utf8String；--RFC2287
ntpSnmpMIB MODULE-IDENTITY
LAST-UPDATED "201005170000Z" -- May 17, 2010
ORGANIZATION "The IETF NTP Working Group (ntpwg)"
CONTACT-INFO
" WG Email: ntpwg@lists.ntp.isc.org
Subscribe:
https://lists.ntp.isc.org/mailman/listinfo/ntpwg
ntpSnmpMIB MODULE-IDENTITY
LAST-UPDATED "201005170000Z" -- May 17, 2010
ORGANIZATION "The IETF NTP Working Group (ntpwg)"
CONTACT-INFO
" WG Email: ntpwg@lists.ntp.isc.org
Subscribe:
https://lists.ntp.isc.org/mailman/listinfo/ntpwg
Heiko Gerstung Meinberg Funkuhren Gmbh & Co. KG Lange Wand 9 Bad Pyrmont 31812 Germany
Heiko Gerstung Meinberg Funkuhren Gmbh&Co.KG Lange Wand 9 Bad Pyrmont德国31812
Phone: +49 5281 9309 25
Email: heiko.gerstung@meinberg.de
Phone: +49 5281 9309 25
Email: heiko.gerstung@meinberg.de
Chris Elliott 1516 Kent St. Durham, NC 27707 USA
美国北卡罗来纳州达勒姆肯特街1516号克里斯·埃利奥特27707
Phone: +1-919-308-1216
Email: chelliot@pobox.com
Phone: +1-919-308-1216
Email: chelliot@pobox.com
Brian Haberman 11100 Johns Hopkins Road Laurel, MD 20723 USA
美国马里兰州劳雷尔市约翰霍普金斯路11100号布莱恩·哈伯曼20723
Phone: +1-443-778-1319 Email: brian@innovationslab.net" DESCRIPTION "The Management Information Base for NTP time entities.
电话：+1-443-778-1319电子邮件：brian@innovationslab.net“说明”NTP时间实体的管理信息库。
Copyright (c) 2010 IETF Trust and the persons identified as authors of the code. All rights reserved.
版权所有（c）2010 IETF信托基金和被确定为代码作者的人员。版权所有。
Redistribution and use in source and binary forms, with or without modification, is permitted pursuant to, and subject to the license terms contained in, the Simplified BSD License set forth in Section 4.c of the IETF Trust's Legal Provisions Relating to IETF Documents
根据IETF信托有关IETF文件的法律规定第4.c节规定的简化BSD许可证中包含的许可条款，允许以源代码和二进制格式重新分发和使用，无论是否修改
(http://trustee.ietf.org/license-info)."
(http://trustee.ietf.org/license-info)."
REVISION "201005170000Z" DESCRIPTION "This revision of the MIB module is published as RFC 5907."
版本“201005170000Z”说明“MIB模块的此版本发布为RFC 5907。”
::= { mib-2 197 }
::= { mib-2 197 }
ntpSnmpMIBObjects OBJECT IDENTIFIER ::= { ntpSnmpMIB 1 }
ntpSnmpMIBObjects OBJECT IDENTIFIER ::= { ntpSnmpMIB 1 }
-- MIB contains 6 groups
--MIB包含6个组
ntpEntInfo OBJECT IDENTIFIER ::= { ntpSnmpMIBObjects 1 }
ntpEntStatus OBJECT IDENTIFIER ::= { ntpSnmpMIBObjects 2 }
ntpAssociation OBJECT IDENTIFIER ::= { ntpSnmpMIBObjects 3 }
ntpEntControl OBJECT IDENTIFIER ::= { ntpSnmpMIBObjects 4 }
ntpEntNotifObjects OBJECT IDENTIFIER ::= { ntpSnmpMIBObjects 5 }
ntpEntInfo OBJECT IDENTIFIER ::= { ntpSnmpMIBObjects 1 }
ntpEntStatus OBJECT IDENTIFIER ::= { ntpSnmpMIBObjects 2 }
ntpAssociation OBJECT IDENTIFIER ::= { ntpSnmpMIBObjects 3 }
ntpEntControl OBJECT IDENTIFIER ::= { ntpSnmpMIBObjects 4 }
ntpEntNotifObjects OBJECT IDENTIFIER ::= { ntpSnmpMIBObjects 5 }
-- -- Textual Conventions --
----文本约定--
NtpStratum ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"The NTP stratum, with 16 representing no stratum."
SYNTAX Unsigned32 (1..16)
NtpStratum ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"The NTP stratum, with 16 representing no stratum."
SYNTAX Unsigned32 (1..16)
NtpDateTime ::= TEXTUAL-CONVENTION
DISPLAY-HINT "4d:4d:4d.4d"
STATUS current
DESCRIPTION
"NTP date/time on the device, in 128-bit
NTP date format. If time is not syncronized, this
field shall be a zero-length string.
NtpDateTime ::= TEXTUAL-CONVENTION
DISPLAY-HINT "4d:4d:4d.4d"
STATUS current
DESCRIPTION
"NTP date/time on the device, in 128-bit
NTP date format. If time is not syncronized, this
field shall be a zero-length string.
This trusted certificate (TC) is not to be used for objects that are used to set the time of the node querying this object. NTP should be used for this -- or at least SNTP." REFERENCE "RFC 5905, section 6" SYNTAX OCTET STRING (SIZE (0 | 16))
此受信任证书（TC）不用于用于设置查询此对象的节点的时间的对象。NTP应用于此，或至少用于SNTP。“参考”RFC 5905，第6节“语法八位字节字符串（大小（0 | 16））
--
-- Section 1: General NTP Entity information objects
-- (relatively static information)
--
--
-- Section 1: General NTP Entity information objects
-- (relatively static information)
--
ntpEntSoftwareName OBJECT-TYPE
SYNTAX Utf8String
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The product name of the running NTP version, e.g., 'ntpd'."
::= { ntpEntInfo 1 }
ntpEntSoftwareName OBJECT-TYPE
SYNTAX Utf8String
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The product name of the running NTP version, e.g., 'ntpd'."
::= { ntpEntInfo 1 }
ntpEntSoftwareVersion OBJECT-TYPE
SYNTAX Utf8String
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The software version of the installed NTP implementation
as a full version string, e.g., 'ntpd-4.2.0b@1.1433 ...'"
::= { ntpEntInfo 2 }
ntpEntSoftwareVersion OBJECT-TYPE
SYNTAX Utf8String
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The software version of the installed NTP implementation
as a full version string, e.g., 'ntpd-4.2.0b@1.1433 ...'"
::= { ntpEntInfo 2 }
ntpEntSoftwareVendor OBJECT-TYPE
SYNTAX Utf8String
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The vendor/author of the installed NTP version."
::= { ntpEntInfo 3 }
ntpEntSoftwareVendor OBJECT-TYPE
SYNTAX Utf8String
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The vendor/author of the installed NTP version."
::= { ntpEntInfo 3 }
ntpEntSystemType OBJECT-TYPE
SYNTAX Utf8String
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"General hardware/os platform information,
e.g., 'Linux 2.6.12 / x86'."
-- freely configurable, default is OS Version / Hardware platform
::= { ntpEntInfo 4 }
ntpEntSystemType OBJECT-TYPE
SYNTAX Utf8String
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"General hardware/os platform information,
e.g., 'Linux 2.6.12 / x86'."
-- freely configurable, default is OS Version / Hardware platform
::= { ntpEntInfo 4 }
ntpEntTimeResolution OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time resolution in integer format, where the resolution
is represented as divisions of a second, e.g., a value of 1000
translates to 1.0 ms."
::= { ntpEntInfo 5 }
ntpEntTimeResolution OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time resolution in integer format, where the resolution
is represented as divisions of a second, e.g., a value of 1000
translates to 1.0 ms."
::= { ntpEntInfo 5 }
ntpEntTimePrecision OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The entity's precision in integer format, shows the precision.
A value of -5 would mean 2^-5 = 31.25 ms."
::= { ntpEntInfo 6 }
ntpEntTimePrecision OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The entity's precision in integer format, shows the precision.
A value of -5 would mean 2^-5 = 31.25 ms."
::= { ntpEntInfo 6 }
ntpEntTimeDistance OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The distance from this NTP entity to the root time reference
(stratum 0) source including the unit, e.g., '13.243 ms'."
::= { ntpEntInfo 7 }
ntpEntTimeDistance OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The distance from this NTP entity to the root time reference
(stratum 0) source including the unit, e.g., '13.243 ms'."
::= { ntpEntInfo 7 }
-- -- Section 2: Current NTP status (dynamic information) --
----第2节：当前NTP状态（动态信息）--
ntpEntStatusCurrentMode OBJECT-TYPE
SYNTAX INTEGER {
notRunning(1),
notSynchronized(2),
noneConfigured(3),
syncToLocal(4),
syncToRefclock(5),
syncToRemoteServer(6),
unknown(99)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current mode of the NTP. The definition of each possible
value is:
notRunning(1) - NTP is not running.
notSynchronized(2) - NTP is not synchronized to any time
source (stratum = 16).
noneConfigured(3) - NTP is not synchronized and does not
have a reference configured
(stratum = 16).
syncToLocal(4) - NTP is distributing time based on its
local clock (degraded accuracy and/or
reliability).
syncToRefclock(5) - NTP is synchronized to a local
hardware refclock (e.g., GPS).
ntpEntStatusCurrentMode OBJECT-TYPE
SYNTAX INTEGER {
notRunning(1),
notSynchronized(2),
noneConfigured(3),
syncToLocal(4),
syncToRefclock(5),
syncToRemoteServer(6),
unknown(99)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current mode of the NTP. The definition of each possible
value is:
notRunning(1) - NTP is not running.
notSynchronized(2) - NTP is not synchronized to any time
source (stratum = 16).
noneConfigured(3) - NTP is not synchronized and does not
have a reference configured
(stratum = 16).
syncToLocal(4) - NTP is distributing time based on its
local clock (degraded accuracy and/or
reliability).
syncToRefclock(5) - NTP is synchronized to a local
hardware refclock (e.g., GPS).
syncToRemoteServer(6) - NTP is synchronized to a remote
NTP server ('upstream' server).
unknown(99) - The state of NTP is unknown."
::= { ntpEntStatus 1 }
syncToRemoteServer(6) - NTP is synchronized to a remote
NTP server ('upstream' server).
unknown(99) - The state of NTP is unknown."
::= { ntpEntStatus 1 }
ntpEntStatusStratum OBJECT-TYPE
SYNTAX NtpStratum
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The NTP entity's own stratum value. Should be a stratum of
syspeer + 1 (or 16 if no syspeer)."
::= { ntpEntStatus 2 }
ntpEntStatusStratum OBJECT-TYPE
SYNTAX NtpStratum
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The NTP entity's own stratum value. Should be a stratum of
syspeer + 1 (or 16 if no syspeer)."
::= { ntpEntStatus 2 }
ntpEntStatusActiveRefSourceId OBJECT-TYPE
SYNTAX Unsigned32 ( 0..99999 )
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The association ID of the current syspeer."
::= { ntpEntStatus 3 }
ntpEntStatusActiveRefSourceId OBJECT-TYPE
SYNTAX Unsigned32 ( 0..99999 )
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The association ID of the current syspeer."
::= { ntpEntStatus 3 }
ntpEntStatusActiveRefSourceName OBJECT-TYPE
SYNTAX Utf8String
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The hostname/descriptive name of the current reference source
selected as syspeer, e.g., 'ntp1.ptb.de' or 'GPS' or
'DCFi', ..."
::= { ntpEntStatus 4 }
ntpEntStatusActiveRefSourceName OBJECT-TYPE
SYNTAX Utf8String
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The hostname/descriptive name of the current reference source
selected as syspeer, e.g., 'ntp1.ptb.de' or 'GPS' or
'DCFi', ..."
::= { ntpEntStatus 4 }
ntpEntStatusActiveOffset OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time offset to the current selected reference time source
as a string including unit, e.g., '0.032 ms' or '1.232 s'."
::= { ntpEntStatus 5 }
ntpEntStatusActiveOffset OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time offset to the current selected reference time source
as a string including unit, e.g., '0.032 ms' or '1.232 s'."
::= { ntpEntStatus 5 }
ntpEntStatusNumberOfRefSources OBJECT-TYPE
SYNTAX Unsigned32 (0..99)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of reference sources configured for NTP."
::= { ntpEntStatus 6 }
ntpEntStatusNumberOfRefSources OBJECT-TYPE
SYNTAX Unsigned32 (0..99)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of reference sources configured for NTP."
::= { ntpEntStatus 6 }
ntpEntStatusDispersion OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The root dispersion of the running NTP entity, e.g., '6.927'."
::= { ntpEntStatus 7 }
ntpEntStatusDispersion OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The root dispersion of the running NTP entity, e.g., '6.927'."
::= { ntpEntStatus 7 }
ntpEntStatusEntityUptime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The uptime of the NTP entity, (i.e., the time since ntpd was
(re-)initialized not sysUptime!). The time is represented in
hundreds of seconds since Jan 1, 1970 (00:00:00.000) UTC."
::= { ntpEntStatus 8 }
ntpEntStatusEntityUptime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The uptime of the NTP entity, (i.e., the time since ntpd was
(re-)initialized not sysUptime!). The time is represented in
hundreds of seconds since Jan 1, 1970 (00:00:00.000) UTC."
::= { ntpEntStatus 8 }
ntpEntStatusDateTime OBJECT-TYPE SYNTAX NtpDateTime MAX-ACCESS read-only STATUS current DESCRIPTION "The current NTP date/time on the device, in 128-bit NTP date format. If time is not syncronized, this field shall be a zero-length string.
ntpEntStatusDateTime对象类型语法NtpDateTime MAX-ACCESS只读状态当前描述“设备上的当前NTP日期/时间，采用128位NTP日期格式。如果未同步时间，则此字段应为零长度字符串。
This object can be used to timestamp events on this node and allow a management station to correlate different time objects. For example, a management station could query this object and sysUpTime in the same operation to be able to relate sysUpTime to NTP time.
此对象可用于在此节点上为事件添加时间戳，并允许管理站关联不同的时间对象。例如，管理站可以在同一操作中查询此对象和sysUpTime，以便能够将sysUpTime与NTP时间关联起来。
This object is not to be used to set the time of
the node querying this object. NTP should be used
for this -- or at least SNTP."
REFERENCE "RFC 5905, section 6"
::= { ntpEntStatus 9 }
This object is not to be used to set the time of
the node querying this object. NTP should be used
for this -- or at least SNTP."
REFERENCE "RFC 5905, section 6"
::= { ntpEntStatus 9 }
ntpEntStatusLeapSecond OBJECT-TYPE
SYNTAX NtpDateTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Date the next known leap second will occur. If there is
no leap second announced, then this object should be 0."
::= { ntpEntStatus 10 }
ntpEntStatusLeapSecond OBJECT-TYPE
SYNTAX NtpDateTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Date the next known leap second will occur. If there is
no leap second announced, then this object should be 0."
::= { ntpEntStatus 10 }
ntpEntStatusLeapSecDirection OBJECT-TYPE
SYNTAX Integer32 (-1..1)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Direction of next known leap second. If there is no
leap second announced, then this object should be 0."
::= { ntpEntStatus 11 }
ntpEntStatusLeapSecDirection OBJECT-TYPE
SYNTAX Integer32 (-1..1)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Direction of next known leap second. If there is no
leap second announced, then this object should be 0."
::= { ntpEntStatus 11 }
ntpEntStatusInPkts OBJECT-TYPE SYNTAX Counter32 UNITS "packets" MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of NTP messages delivered to the NTP entity from the transport service. Discountinuities in the value of this counter can occur upon cold start or reinitialization of the NTP entity, the management system and at other times as indicated by discontinuities in the value of sysUpTime."
ntpEntStatusInPkts对象类型语法计数器32个单元“数据包”最大访问只读状态当前说明“从传输服务传递到NTP实体的NTP邮件总数。NTP实体、管理系统冷启动或重新初始化时，以及sysUpTime值不连续时，可能会出现此计数器值的折扣。”
::= { ntpEntStatus 12 }
::= { ntpEntStatus 12 }
ntpEntStatusOutPkts OBJECT-TYPE
SYNTAX Counter32
UNITS "packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of NTP messages delivered to the
transport service by this NTP entity.
Discountinuities in the value of this counter can occur
upon cold start or reinitialization of the NTP entity, the
management system and at other times as indicated by
discontinuities in the value of sysUpTime."
::= { ntpEntStatus 13 }
ntpEntStatusOutPkts OBJECT-TYPE
SYNTAX Counter32
UNITS "packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of NTP messages delivered to the
transport service by this NTP entity.
Discountinuities in the value of this counter can occur
upon cold start or reinitialization of the NTP entity, the
management system and at other times as indicated by
discontinuities in the value of sysUpTime."
::= { ntpEntStatus 13 }
ntpEntStatusBadVersion OBJECT-TYPE SYNTAX Counter32 UNITS "packets" MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of NTP messages that were delivered to this NTP entity and were for an unsupported NTP version.
ntpEntStatusBadVersion对象类型语法计数器32个单元“数据包”MAX-ACCESS只读状态当前描述“传递到此NTP实体且用于不受支持的NTP版本的NTP消息总数。
Discountinuities in the value of this counter can occur
upon cold start or reinitialization of the NTP entity, the
management system and at other times as indicated by
discontinuities in the value of sysUpTime."
::= { ntpEntStatus 14 }
Discountinuities in the value of this counter can occur
upon cold start or reinitialization of the NTP entity, the
management system and at other times as indicated by
discontinuities in the value of sysUpTime."
::= { ntpEntStatus 14 }
ntpEntStatusProtocolError OBJECT-TYPE
SYNTAX Counter32
UNITS "packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of NTP messages that were delivered
to this NTP entity and this entity was not able to
process due to an NTP protocol error.
Discountinuities in the value of this counter can occur
upon cold start or reinitialization of the NTP entity, the
management system and at other times as indicated by
discontinuities in the value of sysUpTime."
::= { ntpEntStatus 15 }
ntpEntStatusProtocolError OBJECT-TYPE
SYNTAX Counter32
UNITS "packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of NTP messages that were delivered
to this NTP entity and this entity was not able to
process due to an NTP protocol error.
Discountinuities in the value of this counter can occur
upon cold start or reinitialization of the NTP entity, the
management system and at other times as indicated by
discontinuities in the value of sysUpTime."
::= { ntpEntStatus 15 }
ntpEntStatusNotifications OBJECT-TYPE
SYNTAX Counter32
UNITS "notifications"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of SNMP notifications that this NTP
entity has generated.
Discountinuities in the value of this counter can occur
upon cold start or reinitialization of the NTP entity, the
management system and at other times as indicated by
discontinuities in the value of sysUpTime."
::= { ntpEntStatus 16 }
ntpEntStatusNotifications OBJECT-TYPE
SYNTAX Counter32
UNITS "notifications"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of SNMP notifications that this NTP
entity has generated.
Discountinuities in the value of this counter can occur
upon cold start or reinitialization of the NTP entity, the
management system and at other times as indicated by
discontinuities in the value of sysUpTime."
::= { ntpEntStatus 16 }
ntpEntStatPktModeTable OBJECT-TYPE
SYNTAX SEQUENCE OF NtpEntStatPktModeEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The number of packets sent and received by packet mode.
One entry per packet mode."
::= { ntpEntStatus 17 }
ntpEntStatPktModeTable OBJECT-TYPE
SYNTAX SEQUENCE OF NtpEntStatPktModeEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The number of packets sent and received by packet mode.
One entry per packet mode."
::= { ntpEntStatus 17 }
ntpEntStatPktModeEntry OBJECT-TYPE SYNTAX NtpEntStatPktModeEntry MAX-ACCESS not-accessible STATUS current
ntpEntStatPktModeEntry对象类型语法ntpEntStatPktModeEntry最大访问不可访问状态当前
DESCRIPTION
"A statistical record of the number of packets sent and
received for each packet mode."
INDEX { ntpEntStatPktMode }
::= { ntpEntStatPktModeTable 1 }
DESCRIPTION
"A statistical record of the number of packets sent and
received for each packet mode."
INDEX { ntpEntStatPktMode }
::= { ntpEntStatPktModeTable 1 }
NtpEntStatPktModeEntry ::= SEQUENCE {
ntpEntStatPktMode INTEGER,
ntpEntStatPktSent Counter32,
ntpEntStatPktReceived Counter32
}
NtpEntStatPktModeEntry ::= SEQUENCE {
ntpEntStatPktMode INTEGER,
ntpEntStatPktSent Counter32,
ntpEntStatPktReceived Counter32
}
ntpEntStatPktMode OBJECT-TYPE
SYNTAX INTEGER {
symetricactive(1),
symetricpassive(2),
client(3),
server(4),
broadcastserver(5),
broadcastclient(6)
}
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The NTP packet mode."
::= { ntpEntStatPktModeEntry 1 }
ntpEntStatPktMode OBJECT-TYPE
SYNTAX INTEGER {
symetricactive(1),
symetricpassive(2),
client(3),
server(4),
broadcastserver(5),
broadcastclient(6)
}
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The NTP packet mode."
::= { ntpEntStatPktModeEntry 1 }
ntpEntStatPktSent OBJECT-TYPE SYNTAX Counter32 UNITS "packets" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of NTP packets sent with this packet mode. Discountinuities in the value of this counter can occur upon cold start or reinitialization of the NTP entity, the management system and at other times as indicated by discontinuities in the value of sysUpTime."
ntpEntStatPktSent对象类型语法计数器32个单元“数据包”最大访问只读状态当前说明“使用此数据包模式发送的NTP数据包数。NTP实体、管理系统冷启动或重新初始化时，以及sysUpTime值不连续时，可能会出现此计数器值的折扣。”
::= { ntpEntStatPktModeEntry 2 }
::= { ntpEntStatPktModeEntry 2 }
ntpEntStatPktReceived OBJECT-TYPE SYNTAX Counter32 UNITS "packets" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of NTP packets received with this packet mode.
ntpEntStatPktReceived对象类型语法计数器32个单位“数据包”最大访问只读状态当前描述“使用此数据包模式接收的NTP数据包数。
Discountinuities in the value of this counter can occur upon cold start or reinitialization of the NTP entity, the management system and at other times as indicated by discontinuities in the value of sysUpTime."
NTP实体、管理系统冷启动或重新初始化时，以及sysUpTime值不连续时，可能会出现此计数器值的折扣。”
::= { ntpEntStatPktModeEntry 3 }
::= { ntpEntStatPktModeEntry 3 }
-- -- Section 3: The status of all currently mobilized associations --
----第3节：目前动员的所有协会的状况--
ntpAssociationTable OBJECT-TYPE
SYNTAX SEQUENCE OF NtpAssociationEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The table of currently mobilized associations."
::= { ntpAssociation 1 }
ntpAssociationTable OBJECT-TYPE
SYNTAX SEQUENCE OF NtpAssociationEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The table of currently mobilized associations."
::= { ntpAssociation 1 }
ntpAssociationEntry OBJECT-TYPE
SYNTAX NtpAssociationEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The table entry of currently mobilized associations."
INDEX { ntpAssocId }
::= { ntpAssociationTable 1 }
ntpAssociationEntry OBJECT-TYPE
SYNTAX NtpAssociationEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The table entry of currently mobilized associations."
INDEX { ntpAssocId }
::= { ntpAssociationTable 1 }
NtpAssociationEntry ::= SEQUENCE {
ntpAssocId Unsigned32,
ntpAssocName Utf8String,
ntpAssocRefId DisplayString,
ntpAssocAddressType InetAddressType,
ntpAssocAddress InetAddress,
ntpAssocOffset DisplayString,
ntpAssocStratum NtpStratum,
ntpAssocStatusJitter DisplayString,
ntpAssocStatusDelay DisplayString,
ntpAssocStatusDispersion DisplayString
}
NtpAssociationEntry ::= SEQUENCE {
ntpAssocId Unsigned32,
ntpAssocName Utf8String,
ntpAssocRefId DisplayString,
ntpAssocAddressType InetAddressType,
ntpAssocAddress InetAddress,
ntpAssocOffset DisplayString,
ntpAssocStratum NtpStratum,
ntpAssocStatusJitter DisplayString,
ntpAssocStatusDelay DisplayString,
ntpAssocStatusDispersion DisplayString
}
ntpAssocId OBJECT-TYPE
SYNTAX Unsigned32 ( 1..99999 )
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The association ID. This is an internal, unique ID."
::= { ntpAssociationEntry 1 }
ntpAssocId OBJECT-TYPE
SYNTAX Unsigned32 ( 1..99999 )
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The association ID. This is an internal, unique ID."
::= { ntpAssociationEntry 1 }
ntpAssocName OBJECT-TYPE
SYNTAX Utf8String
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The hostname or other descriptive name for the association."
::= { ntpAssociationEntry 2 }
ntpAssocName OBJECT-TYPE
SYNTAX Utf8String
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The hostname or other descriptive name for the association."
::= { ntpAssociationEntry 2 }
ntpAssocRefId OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The refclock driver ID, if available."
-- a refclock driver ID like "127.127.1.0" for non
-- uni/multi/broadcast associations
::= { ntpAssociationEntry 3 }
ntpAssocRefId OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The refclock driver ID, if available."
-- a refclock driver ID like "127.127.1.0" for non
-- uni/multi/broadcast associations
::= { ntpAssociationEntry 3 }
ntpAssocAddressType OBJECT-TYPE
SYNTAX InetAddressType { ipv4(1), ipv6(2), ipv4z(3), ipv6z(4) }
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The type of address of the association. Can be either IPv4 or
IPv6 (both with or without zone index) and contains the type of
address for unicast, multicast, and broadcast associations."
::= { ntpAssociationEntry 4 }
ntpAssocAddressType OBJECT-TYPE
SYNTAX InetAddressType { ipv4(1), ipv6(2), ipv4z(3), ipv6z(4) }
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The type of address of the association. Can be either IPv4 or
IPv6 (both with or without zone index) and contains the type of
address for unicast, multicast, and broadcast associations."
::= { ntpAssociationEntry 4 }
ntpAssocAddress OBJECT-TYPE
SYNTAX InetAddress (SIZE (4|8|16|20))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The IP address (IPv4 or IPv6, with or without zone index) of
the association. The type and size depends on the
ntpAssocAddressType object. Represents the IP address of a
uni/multi/broadcast association."
::= { ntpAssociationEntry 5 }
ntpAssocAddress OBJECT-TYPE
SYNTAX InetAddress (SIZE (4|8|16|20))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The IP address (IPv4 or IPv6, with or without zone index) of
the association. The type and size depends on the
ntpAssocAddressType object. Represents the IP address of a
uni/multi/broadcast association."
::= { ntpAssociationEntry 5 }
ntpAssocOffset OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time offset to the association as a string."
-- including unit, e.g., "0.032 ms" or "1.232 s"
::= { ntpAssociationEntry 6 }
ntpAssocOffset OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time offset to the association as a string."
-- including unit, e.g., "0.032 ms" or "1.232 s"
::= { ntpAssociationEntry 6 }
ntpAssocStratum OBJECT-TYPE
SYNTAX NtpStratum
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The association stratum value."
::= { ntpAssociationEntry 7 }
ntpAssocStratum OBJECT-TYPE
SYNTAX NtpStratum
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The association stratum value."
::= { ntpAssociationEntry 7 }
ntpAssocStatusJitter OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The jitter in milliseconds as a string."
::= { ntpAssociationEntry 8 }
ntpAssocStatusJitter OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The jitter in milliseconds as a string."
::= { ntpAssociationEntry 8 }
ntpAssocStatusDelay OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The network delay in milliseconds as a string."
::= { ntpAssociationEntry 9 }
ntpAssocStatusDelay OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The network delay in milliseconds as a string."
::= { ntpAssociationEntry 9 }
ntpAssocStatusDispersion OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The root dispersion of the association."
-- e.g., "6.927"
::= { ntpAssociationEntry 10 }
ntpAssocStatusDispersion OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The root dispersion of the association."
-- e.g., "6.927"
::= { ntpAssociationEntry 10 }
ntpAssociationStatisticsTable OBJECT-TYPE
SYNTAX SEQUENCE OF NtpAssociationStatisticsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The table of statistics for current associations."
::= { ntpAssociation 2 }
ntpAssociationStatisticsTable OBJECT-TYPE
SYNTAX SEQUENCE OF NtpAssociationStatisticsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The table of statistics for current associations."
::= { ntpAssociation 2 }
ntpAssociationStatisticsEntry OBJECT-TYPE SYNTAX NtpAssociationStatisticsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The table entry of statistics for current associations." INDEX { ntpAssocId }
ntpAssociationStatisticsEntry对象类型语法ntpAssociationStatisticsEntry MAX-ACCESS不可访问状态当前描述“当前关联的统计表项”。索引{ntpAssocId}
::= { ntpAssociationStatisticsTable 1 }
::= { ntpAssociationStatisticsTable 1 }
NtpAssociationStatisticsEntry ::= SEQUENCE {
ntpAssocStatInPkts Counter32,
ntpAssocStatOutPkts Counter32,
ntpAssocStatProtocolError Counter32
}
NtpAssociationStatisticsEntry ::= SEQUENCE {
ntpAssocStatInPkts Counter32,
ntpAssocStatOutPkts Counter32,
ntpAssocStatProtocolError Counter32
}
ntpAssocStatInPkts OBJECT-TYPE SYNTAX Counter32 UNITS "packets" MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of NTP messages delivered to the NTP entity from this association. Discountinuities in the value of this counter can occur upon cold start or reinitialization of the NTP entity, the management system and at other times as indicated by discontinuities in the value of sysUpTime."
ntpAssocStatInPkts对象类型语法计数器32个单元“数据包”最大访问只读状态当前说明“从此关联传递到NTP实体的NTP邮件总数。NTP实体、管理系统冷启动或重新初始化时，以及sysUpTime值不连续时，可能会出现此计数器值的折扣。”
::= { ntpAssociationStatisticsEntry 1 }
::= { ntpAssociationStatisticsEntry 1 }
ntpAssocStatOutPkts OBJECT-TYPE SYNTAX Counter32 UNITS "packets" MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of NTP messages delivered to the transport service by this NTP entity for this association. Discountinuities in the value of this counter can occur upon cold start or reinitialization of the NTP entity, the management system and at other times as indicated by discontinuities in the value of sysUpTime."
ntpAssocStatOutPkts对象类型语法计数器32个单元“数据包”最大访问只读状态当前说明“此NTP实体为此关联传递到传输服务的NTP邮件总数。NTP实体、管理系统冷启动或重新初始化时，以及sysUpTime值不连续时，可能会出现此计数器值的折扣。”
::= { ntpAssociationStatisticsEntry 2 }
::= { ntpAssociationStatisticsEntry 2 }
ntpAssocStatProtocolError OBJECT-TYPE SYNTAX Counter32 UNITS "packets" MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of NTP messages that were delivered to this NTP entity from this association and this entity was not able to process due to an NTP protocol error.
ntpAssocStatProtocolError对象类型语法计数器32个单位“数据包”MAX-ACCESS只读状态当前描述“从此关联传递到此NTP实体的NTP消息总数，由于NTP协议错误，此实体无法处理。
Discountinuities in the value of this counter can occur upon cold start or reinitialization of the NTP entity, the management system and at other times as indicated by discontinuities in the value of sysUpTime."
NTP实体、管理系统冷启动或重新初始化时，以及sysUpTime值不连续时，可能会出现此计数器值的折扣。”
::= { ntpAssociationStatisticsEntry 3 }
::= { ntpAssociationStatisticsEntry 3 }
-- -- Section 4: Control objects --
----第4节：控制对象--
ntpEntHeartbeatInterval OBJECT-TYPE
SYNTAX Unsigned32
UNITS "seconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The interval at which the ntpEntNotifHeartbeat notification
should be sent, in seconds. If set to 0 and the
entNotifHeartbeat bit in ntpEntNotifBits is 1, then
ntpEntNotifHeartbeat is sent once.
This value is stored persistently and will be restored to its
last set value upon cold start or restart."
DEFVAL { 60 }
::= { ntpEntControl 1 }
ntpEntHeartbeatInterval OBJECT-TYPE
SYNTAX Unsigned32
UNITS "seconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The interval at which the ntpEntNotifHeartbeat notification
should be sent, in seconds. If set to 0 and the
entNotifHeartbeat bit in ntpEntNotifBits is 1, then
ntpEntNotifHeartbeat is sent once.
This value is stored persistently and will be restored to its
last set value upon cold start or restart."
DEFVAL { 60 }
::= { ntpEntControl 1 }
ntpEntNotifBits OBJECT-TYPE
SYNTAX BITS {
notUsed(0), -- Used to sync up bit and notification
-- indices
entNotifModeChange(1),
entNotifStratumChange(2),
entNotifSyspeerChanged(3),
entNotifAddAssociation(4),
entNotifRemoveAssociation(5),
entNotifConfigChanged(6),
entNotifLeapSecondAnnounced(7),
entNotifHeartbeat(8)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A bit for each notification. A 1 for a particular bit enables
that particular notification, a 0 disables it.
This value is stored persistently and will be restored to its
last set value upon cold start or restart."
::= { ntpEntControl 2 }
ntpEntNotifBits OBJECT-TYPE
SYNTAX BITS {
notUsed(0), -- Used to sync up bit and notification
-- indices
entNotifModeChange(1),
entNotifStratumChange(2),
entNotifSyspeerChanged(3),
entNotifAddAssociation(4),
entNotifRemoveAssociation(5),
entNotifConfigChanged(6),
entNotifLeapSecondAnnounced(7),
entNotifHeartbeat(8)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A bit for each notification. A 1 for a particular bit enables
that particular notification, a 0 disables it.
This value is stored persistently and will be restored to its
last set value upon cold start or restart."
::= { ntpEntControl 2 }
-- -- Section 5: Notification objects --
----第5节：通知对象--
ntpEntNotifMessage OBJECT-TYPE
SYNTAX Utf8String
MAX-ACCESS accessible-for-notify
STATUS current
DESCRIPTION
"Used as a payload object for all notifications. Holds a
cleartext event message."
DEFVAL { "no event" }
::= { ntpEntNotifObjects 1 }
ntpEntNotifMessage OBJECT-TYPE
SYNTAX Utf8String
MAX-ACCESS accessible-for-notify
STATUS current
DESCRIPTION
"Used as a payload object for all notifications. Holds a
cleartext event message."
DEFVAL { "no event" }
::= { ntpEntNotifObjects 1 }
-- -- SNMP notification definitions --
----SNMP通知定义--
ntpEntNotifications OBJECT IDENTIFIER ::= { ntpSnmpMIB 0 }
ntpEntNotifications OBJECT IDENTIFIER ::= { ntpSnmpMIB 0 }
ntpEntNotifModeChange NOTIFICATION-TYPE
OBJECTS { ntpEntStatusCurrentMode }
STATUS current
DESCRIPTION
"The notification to be sent when the NTP entity changes mode,
including starting and stopping (if possible)."
::= { ntpEntNotifications 1 }
ntpEntNotifModeChange NOTIFICATION-TYPE
OBJECTS { ntpEntStatusCurrentMode }
STATUS current
DESCRIPTION
"The notification to be sent when the NTP entity changes mode,
including starting and stopping (if possible)."
::= { ntpEntNotifications 1 }
ntpEntNotifStratumChange NOTIFICATION-TYPE
OBJECTS { ntpEntStatusDateTime, ntpEntStatusStratum,
ntpEntNotifMessage }
STATUS current
DESCRIPTION
"The notification to be sent when stratum level of NTP changes."
::= { ntpEntNotifications 2 }
ntpEntNotifStratumChange NOTIFICATION-TYPE
OBJECTS { ntpEntStatusDateTime, ntpEntStatusStratum,
ntpEntNotifMessage }
STATUS current
DESCRIPTION
"The notification to be sent when stratum level of NTP changes."
::= { ntpEntNotifications 2 }
ntpEntNotifSyspeerChanged NOTIFICATION-TYPE
OBJECTS { ntpEntStatusDateTime, ntpEntStatusActiveRefSourceId,
ntpEntNotifMessage }
STATUS current
DESCRIPTION
"The notification to be sent when a (new) syspeer has been
selected."
::= { ntpEntNotifications 3 }
ntpEntNotifSyspeerChanged NOTIFICATION-TYPE
OBJECTS { ntpEntStatusDateTime, ntpEntStatusActiveRefSourceId,
ntpEntNotifMessage }
STATUS current
DESCRIPTION
"The notification to be sent when a (new) syspeer has been
selected."
::= { ntpEntNotifications 3 }
ntpEntNotifAddAssociation NOTIFICATION-TYPE OBJECTS { ntpEntStatusDateTime, ntpAssocName, ntpEntNotifMessage } STATUS current
ntpEntNotifAddAssociation通知类型对象{ntpEntStatusDateTime，ntpAssocName，ntpEntNotifMessage}当前状态
DESCRIPTION
"The notification to be sent when a new association is
mobilized."
::= { ntpEntNotifications 4 }
DESCRIPTION
"The notification to be sent when a new association is
mobilized."
::= { ntpEntNotifications 4 }
ntpEntNotifRemoveAssociation NOTIFICATION-TYPE
OBJECTS { ntpEntStatusDateTime, ntpAssocName, ntpEntNotifMessage }
STATUS current
DESCRIPTION
"The notification to be sent when an association is
demobilized."
::= { ntpEntNotifications 5 }
ntpEntNotifRemoveAssociation NOTIFICATION-TYPE
OBJECTS { ntpEntStatusDateTime, ntpAssocName, ntpEntNotifMessage }
STATUS current
DESCRIPTION
"The notification to be sent when an association is
demobilized."
::= { ntpEntNotifications 5 }
ntpEntNotifConfigChanged NOTIFICATION-TYPE
OBJECTS { ntpEntStatusDateTime, ntpEntNotifMessage }
STATUS current
DESCRIPTION
"The notification to be sent when the NTP configuration has
changed, e.g., when the system connected to the Internet and
was assigned a new IP address by the ISPs DHCP server."
::= { ntpEntNotifications 6 }
ntpEntNotifConfigChanged NOTIFICATION-TYPE
OBJECTS { ntpEntStatusDateTime, ntpEntNotifMessage }
STATUS current
DESCRIPTION
"The notification to be sent when the NTP configuration has
changed, e.g., when the system connected to the Internet and
was assigned a new IP address by the ISPs DHCP server."
::= { ntpEntNotifications 6 }
ntpEntNotifLeapSecondAnnounced NOTIFICATION-TYPE
OBJECTS { ntpEntStatusDateTime, ntpEntNotifMessage }
STATUS current
DESCRIPTION
"The notification to be sent when a leap second has been
announced."
::= { ntpEntNotifications 7 }
ntpEntNotifLeapSecondAnnounced NOTIFICATION-TYPE
OBJECTS { ntpEntStatusDateTime, ntpEntNotifMessage }
STATUS current
DESCRIPTION
"The notification to be sent when a leap second has been
announced."
::= { ntpEntNotifications 7 }
ntpEntNotifHeartbeat NOTIFICATION-TYPE
OBJECTS { ntpEntStatusDateTime, ntpEntStatusCurrentMode,
ntpEntHeartbeatInterval, ntpEntNotifMessage }
STATUS current
DESCRIPTION
"The notification to be sent periodically (as defined by
ntpEntHeartbeatInterval) to indicate that the NTP entity is
still alive."
::= { ntpEntNotifications 8 }
ntpEntNotifHeartbeat NOTIFICATION-TYPE
OBJECTS { ntpEntStatusDateTime, ntpEntStatusCurrentMode,
ntpEntHeartbeatInterval, ntpEntNotifMessage }
STATUS current
DESCRIPTION
"The notification to be sent periodically (as defined by
ntpEntHeartbeatInterval) to indicate that the NTP entity is
still alive."
::= { ntpEntNotifications 8 }
-- -- Conformance/Compliance statements --
----合规性/合规性声明--
ntpEntConformance OBJECT IDENTIFIER ::= { ntpSnmpMIB 2 }
ntpEntConformance OBJECT IDENTIFIER ::= { ntpSnmpMIB 2 }
ntpEntCompliances OBJECT IDENTIFIER ::= { ntpEntConformance 1 }
ntpEntGroups OBJECT IDENTIFIER ::= { ntpEntConformance 2 }
ntpEntCompliances OBJECT IDENTIFIER ::= { ntpEntConformance 1 }
ntpEntGroups OBJECT IDENTIFIER ::= { ntpEntConformance 2 }
ntpEntNTPCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for SNMP entities that use NTP and
implement the NTP MIB."
MODULE -- this module
MANDATORY-GROUPS {
ntpEntObjectsGroup1
}
::= { ntpEntCompliances 1 }
ntpEntNTPCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for SNMP entities that use NTP and
implement the NTP MIB."
MODULE -- this module
MANDATORY-GROUPS {
ntpEntObjectsGroup1
}
::= { ntpEntCompliances 1 }
ntpEntSNTPCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for SNMP entities that use SNTP and
implement the NTP MIB."
MODULE -- this module
MANDATORY-GROUPS {
ntpEntObjectsGroup1
}
GROUP ntpEntObjectsGroup2
DESCRIPTION
"Optional object group."
GROUP ntpEntNotifGroup
DESCRIPTION
"Optional notifications for this MIB."
::= { ntpEntCompliances 2 }
ntpEntSNTPCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for SNMP entities that use SNTP and
implement the NTP MIB."
MODULE -- this module
MANDATORY-GROUPS {
ntpEntObjectsGroup1
}
GROUP ntpEntObjectsGroup2
DESCRIPTION
"Optional object group."
GROUP ntpEntNotifGroup
DESCRIPTION
"Optional notifications for this MIB."
::= { ntpEntCompliances 2 }
ntpEntObjectsGroup1 OBJECT-GROUP
OBJECTS {
ntpEntSoftwareName,
ntpEntSoftwareVersion,
ntpEntSoftwareVendor,
ntpEntSystemType,
ntpEntStatusEntityUptime,
ntpEntStatusDateTime,
ntpAssocName,
ntpAssocRefId,
ntpAssocAddressType,
ntpAssocAddress
}
STATUS current
DESCRIPTION
"A collection of objects for the NTP MIB."
::= { ntpEntGroups 1 }
ntpEntObjectsGroup1 OBJECT-GROUP
OBJECTS {
ntpEntSoftwareName,
ntpEntSoftwareVersion,
ntpEntSoftwareVendor,
ntpEntSystemType,
ntpEntStatusEntityUptime,
ntpEntStatusDateTime,
ntpAssocName,
ntpAssocRefId,
ntpAssocAddressType,
ntpAssocAddress
}
STATUS current
DESCRIPTION
"A collection of objects for the NTP MIB."
::= { ntpEntGroups 1 }
ntpEntObjectsGroup2 OBJECT-GROUP OBJECTS {
ntpEntObjectsGroup2对象组对象{
ntpEntTimeResolution,
ntpEntTimePrecision,
ntpEntTimeDistance,
ntpEntStatusCurrentMode,
ntpEntStatusStratum,
ntpEntStatusActiveRefSourceId,
ntpEntStatusActiveRefSourceName,
ntpEntStatusActiveOffset,
ntpEntStatusNumberOfRefSources,
ntpEntStatusDispersion,
ntpEntStatusLeapSecond,
ntpEntStatusLeapSecDirection,
ntpEntStatusInPkts,
ntpEntStatusOutPkts,
ntpEntStatusBadVersion,
ntpEntStatusProtocolError,
ntpEntStatusNotifications,
ntpEntStatPktSent,
ntpEntStatPktReceived,
ntpAssocOffset,
ntpAssocStratum,
ntpAssocStatusJitter,
ntpAssocStatusDelay,
ntpAssocStatusDispersion,
ntpAssocStatInPkts,
ntpAssocStatOutPkts,
ntpAssocStatProtocolError,
ntpEntHeartbeatInterval,
ntpEntNotifBits,
ntpEntNotifMessage
}
STATUS current
DESCRIPTION
"A collection of objects for the NTP MIB."
::= { ntpEntGroups 2 }
ntpEntTimeResolution,
ntpEntTimePrecision,
ntpEntTimeDistance,
ntpEntStatusCurrentMode,
ntpEntStatusStratum,
ntpEntStatusActiveRefSourceId,
ntpEntStatusActiveRefSourceName,
ntpEntStatusActiveOffset,
ntpEntStatusNumberOfRefSources,
ntpEntStatusDispersion,
ntpEntStatusLeapSecond,
ntpEntStatusLeapSecDirection,
ntpEntStatusInPkts,
ntpEntStatusOutPkts,
ntpEntStatusBadVersion,
ntpEntStatusProtocolError,
ntpEntStatusNotifications,
ntpEntStatPktSent,
ntpEntStatPktReceived,
ntpAssocOffset,
ntpAssocStratum,
ntpAssocStatusJitter,
ntpAssocStatusDelay,
ntpAssocStatusDispersion,
ntpAssocStatInPkts,
ntpAssocStatOutPkts,
ntpAssocStatProtocolError,
ntpEntHeartbeatInterval,
ntpEntNotifBits,
ntpEntNotifMessage
}
STATUS current
DESCRIPTION
"A collection of objects for the NTP MIB."
::= { ntpEntGroups 2 }
ntpEntNotifGroup NOTIFICATION-GROUP
NOTIFICATIONS {
ntpEntNotifModeChange,
ntpEntNotifStratumChange,
ntpEntNotifSyspeerChanged,
ntpEntNotifAddAssociation,
ntpEntNotifRemoveAssociation,
ntpEntNotifConfigChanged,
ntpEntNotifLeapSecondAnnounced,
ntpEntNotifHeartbeat
}
STATUS current
ntpEntNotifGroup NOTIFICATION-GROUP
NOTIFICATIONS {
ntpEntNotifModeChange,
ntpEntNotifStratumChange,
ntpEntNotifSyspeerChanged,
ntpEntNotifAddAssociation,
ntpEntNotifRemoveAssociation,
ntpEntNotifConfigChanged,
ntpEntNotifLeapSecondAnnounced,
ntpEntNotifHeartbeat
}
STATUS current
DESCRIPTION
"A collection of notifications for the NTP MIB"
::= { ntpEntGroups 3 }
DESCRIPTION
"A collection of notifications for the NTP MIB"
::= { ntpEntGroups 3 }
END
终止
The MIB module in this document uses the following IANA-assigned OBJECT IDENTIFIER values recorded in the SMI Numbers registry:
本文档中的MIB模块使用SMI编号注册表中记录的以下IANA分配的对象标识符值：
Descriptor OBJECT IDENTIFIER value
---------- -----------------------
Descriptor OBJECT IDENTIFIER value
---------- -----------------------
ntpSnmp { mib-2 197 }
ntpSnmp{mib-2197}
There are currently two management objects defined in this MIB module with a MAX-ACCESS clause of read-write and/or read-create. Such objects may be considered sensitive or vulnerable in some network environments. The support for SET operations in a non-secure environment without proper protection can have a negative effect on network operations. These are the objects and their sensitivity/ vulnerability:
此MIB模块中当前定义了两个管理对象，其MAX-ACCESS子句为read-write和/或read create。在某些网络环境中，此类对象可能被视为敏感或易受攻击。在没有适当保护的非安全环境中支持SET操作可能会对网络操作产生负面影响。这些是对象及其敏感度/脆弱性：
ntpEntHeartbeatInterval controls the interval of heartbeat notifications. If set to 1, this will cause the NTP entity to send one notification each second. This is the maximum rate (1/s) that can be generated automatically. If it is set to 0, then one single hearbeat notification will be created and no further automatically generated notification is sent. This functionality can be used to create notifications at a higher rate (as high as the object can be written).
ntpEntHeartbeatInterval控制心跳通知的间隔。如果设置为1，这将导致NTP实体每秒发送一个通知。这是可以自动生成的最大速率（1/s）。如果设置为0，则将创建一个hearbeat通知，并且不会发送进一步的自动生成的通知。此功能可用于以更高的速率（尽可能高的对象写入速率）创建通知。
ntpEntNotifBits enables/disables notifications. Could be used to switch off notifications in order to delay or eliminate the notification for critical and important events.
ntpEntNotifBits启用/禁用通知。可用于关闭通知，以延迟或消除关键和重要事件的通知。
Some of the readable objects in this MIB module (i.e., objects with a MAX-ACCESS other than not-accessible) may be considered sensitive or vulnerable in some network environments. It is thus important to control even GET and/or NOTIFY access to these objects and possibly to even encrypt the values of these objects when sending them over the network via SNMP. These are the tables and objects and their sensitivity/vulnerability:
在某些网络环境中，此MIB模块中的某些可读对象（即具有MAX-ACCESS而非not ACCESS的对象）可能被视为敏感或易受攻击。因此，在通过SNMP通过网络发送这些对象时，控制甚至获取和/或通知对这些对象的访问，甚至可能加密这些对象的值，这一点非常重要。以下是表和对象及其敏感度/漏洞：
ntpEntSoftwareName, ntpEntSoftwareVersion, ntpEntSoftwareVendor, and ntpEntSystemType all can be used to identify software and its version as well as the operating system and hardware platform. This might help a potential attacker to find security problems and therefore can be used in the preparation of an attack.
ntpEntSoftwareName、ntpEntSoftwareVersion、ntpEntSoftwareVendor和ntpEntSystemType均可用于识别软件及其版本以及操作系统和硬件平台。这可能有助于潜在攻击者发现安全问题，因此可用于准备攻击。
SNMP versions prior to SNMPv3 did not include adequate security. Even if the network itself is secure (for example by using IPsec), even then, there is no control as to who on the secure network is allowed to access and GET/SET (read/change/create/delete) the objects in this MIB module. It is RECOMMENDED that implementers consider the security features as provided by the SNMPv3 framework (see RFC 3410 [RFC3410], section 8), including full support for the SNMPv3 cryptographic mechanisms (for authentication and privacy). Further, deployment of SNMP versions prior to SNMPv3 is NOT RECOMMENDED. Instead, it is RECOMMENDED to deploy SNMPv3 and to enable cryptographic security. It is then a customer/operator responsibility to ensure that the SNMP entity giving access to an instance of this MIB module is properly configured to give access to the objects only to those principals (users) that have legitimate rights to indeed GET or SET (change/create/delete) them.
SNMPv3之前的SNMP版本未包含足够的安全性。即使网络本身是安全的（例如通过使用IPsec），即使如此，也无法控制安全网络上的谁可以访问和获取/设置（读取/更改/创建/删除）此MIB模块中的对象。建议实施者考虑SNMPv3框架提供的安全特性（参见RFC 3410 [RFC340]，第8节），包括对SNMPv3加密机制的完全支持（用于身份验证和隐私）。此外，不建议部署SNMPv3之前的SNMP版本。相反，建议部署SNMPv3并启用加密安全性。然后，客户/运营商应负责确保授予访问此MIB模块实例权限的SNMP实体已正确配置为仅授予那些拥有确实获取或设置（更改/创建/删除）对象的合法权限的主体（用户）访问对象。
Bert Wijnen provided valuable feedback as the MIB Doctor for this document.
Bert Wijnen作为MIB医生为本文件提供了宝贵的反馈。
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC2119]Bradner，S.，“RFC中用于表示需求水平的关键词”，BCP 14，RFC 2119，1997年3月。
[RFC5905] Mills, D., Martin, J., Ed., Burbank, J., and W. Kasch, "Network Time Protocol Version 4: Protocol and Algorithms Specification", RFC 5905, June 2010.
[RFC5905]Mills，D.，Martin，J.，Ed.，Burbank，J.，和W.Kasch，“网络时间协议版本4：协议和算法规范”，RFC 59052010年6月。
[RFC2287] Krupczak, C. and J. Saperia, "Definitions of System-Level Managed Objects for Applications", RFC 2287, February 1998.
[RFC2287]Krupczak，C.和J.Saperia，“应用程序系统级托管对象的定义”，RFC 2287，1998年2月。
[RFC2578] McCloghrie, K., Ed., Perkins, D., Ed., and J. Schoenwaelder, Ed., "Structure of Management Information Version 2 (SMIv2)", STD 58, RFC 2578, April 1999.
[RFC2578]McCloghrie，K.，Ed.，Perkins，D.，Ed.，和J.Schoenwaeld，Ed.“管理信息的结构版本2（SMIv2）”，STD 58，RFC 2578，1999年4月。
[RFC2579] McCloghrie, K., Ed., Perkins, D., Ed., and J. Schoenwaelder, Ed., "Textual Conventions for SMIv2", STD 58, RFC 2579, April 1999.
[RFC2579]McCloghrie，K.，Ed.，Perkins，D.，Ed.，和J.Schoenwaeld，Ed.“SMIv2的文本约定”，STD 58，RFC 2579，1999年4月。
[RFC2580] McCloghrie, K., Perkins, D., and J. Schoenwaelder, "Conformance Statements for SMIv2", STD 58, RFC 2580, April 1999.
[RFC2580]McCloghrie，K.，Perkins，D.，和J.Schoenwaeld，“SMIv2的一致性声明”，STD 58，RFC 25801999年4月。
[RFC4001] Daniele, M., Haberman, B., Routhier, S., and J. Schoenwaelder, "Textual Conventions for Internet Network Addresses", RFC 4001, February 2005.
[RFC4001]Daniele，M.，Haberman，B.，Routhier，S.，和J.Schoenwaeld，“互联网网络地址的文本约定”，RFC 4001，2005年2月。
[RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart, "Introduction and Applicability Statements for Internet-Standard Management Framework", RFC 3410, December 2002.
[RFC3410]Case，J.，Mundy，R.，Partain，D.，和B.Stewart，“互联网标准管理框架的介绍和适用性声明”，RFC 34102002年12月。
Authors' Addresses
作者地址
Heiko Gerstung Meinberg Funkuhren Gmbh & Co. KG Lange Wand 9 Bad Pyrmont 31812 Germany
Heiko Gerstung Meinberg Funkuhren Gmbh&Co.KG Lange Wand 9 Bad Pyrmont德国31812
Phone: +49 5281 9309 25
EMail: heiko.gerstung@meinberg.de
Phone: +49 5281 9309 25
EMail: heiko.gerstung@meinberg.de
Chris Elliott 1516 Kent St. Durham, NC 27707 USA
美国北卡罗来纳州达勒姆肯特街1516号克里斯·埃利奥特27707
Phone: +1-919-308-1216
EMail: chelliot@pobox.com
Phone: +1-919-308-1216
EMail: chelliot@pobox.com
Brian Haberman (editor) Johns Hopkins University Applied Physics Lab 11100 Johns Hopkins Road Laurel, MD 20723-6099 US
布莱恩·哈伯曼（编辑）约翰·霍普金斯大学应用物理实验室美国马里兰州劳雷尔市约翰·霍普金斯路11100号20723-6099
Phone: +1 443 778 1319
EMail: brian@innovationslab.net
Phone: +1 443 778 1319
EMail: brian@innovationslab.net